There are many 'serious' hard money lenders.
They are serious about making money, just as you are.
Share a little more expanding on what lies behind your 'Serious" parameter.
To often, serious is defined by the borrower as 8%. The lender, however, will request you to get serious.
We need to know:
1. How much
2. How long
3. Rate you will agree to pay
Now that looks serious.